MST to AEST converter

Mountain Time (MST) is UTC−7 and observes daylight saving (MDT, UTC−6, roughly March–November). It covers Denver, Salt Lake City and Calgary.

Australian Eastern Time (AEST) is UTC+10 and observes daylight saving (AEDT, UTC+11, roughly October–April). It covers Sydney, Melbourne and Canberra.

Australian Eastern Time is typically 17 hours ahead of Mountain Time, though daylight saving can shift the difference by an hour at some times of year.

Best time to call Australian Eastern Time from Mountain Time

There's no 9-to-5 overlap between Mountain Time and Australian Eastern Time — one side always has to flex. The practical slots: 5:00 PM in Mountain Time is 10:00 AM in Australian Eastern Time. Daylight saving can shift these times by an hour at some points in the year.